Update (index_topic_1uint32 homeDomain, index_topic_2bytes32 oldRoot, index_topic_3bytes32 newRoot, bytes signature)
[topic 0]:0x608828ad904a0c9250c09004ba7226efb08f35a5c815bb3f76b5a8a271cd08b2
[topic 1]:0x0000000000000000000000000000000000000000000000000000000063656c6f
[topic 2]:0x17f0e37bf47e52514957f112f515219bab5f1425b049480dd16998b369b61e59
[topic 3]:0x2ff89bc6f8dcb95134e702c3da5ef6b1f38060f8fa76a5c8e290a6eade921ea2
0x000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000414fb5e5dbb251aa837596b287b19464de31795ecf1d3b71fb4db3e795a228880f546cd9d0cf1037409db332f0356722c449e52dade55c9337c5a610f93bfbbc721b00000000000000000000000000000000000000000000000000000000000000